wow im so inspired if im not wrong is it charcoal ahm sir im using graphite pencil and first i used a charcoal in my work its dusty can you give me an advice .....how to use charcoal in correct way thank you

Haha, thanks a lot, but this is actually graphite. I have worked with charcoal though. It's very messy and I don't know if use the charcoal sticks or pencils, but I prefer using pencils so I have more control and the work gets less messy. With the pencils, I build up tone and value much in the same way I use graphite pencils. I also keep a piece of paper under my drawing hand to avoid smudging. After the piece is done, I use fixative spray to keep the charcoal "sticking" on to the paper. The excess charcoal would wear off, but the spray keeps the heavy work in place and prevents smudging and the messiness. I hope this helps.